net.java.truevfs.driver.zip.raes.crypto

Class RaesOutputStream

java.lang.Object

java.io.OutputStream

net.java.truecommons.io.DecoratingOutputStream

net.java.truevfs.driver.zip.raes.crypto.RaesOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

@NotThreadSafe
public abstract class RaesOutputStream
extends net.java.truecommons.io.DecoratingOutputStream

An OutputStream which produces a file with data ecnrypted according to the Random Access Encryption Specification (RAES).

Author:

Christian Schlichtherle

See Also:

RaesReadOnlyChannel

Field Summary

Fields inherited from class net.java.truecommons.io.DecoratingOutputStream

out

Constructor Summary

Constructors

Constructor and Description
RaesOutputStream()

Method Summary

Modifier and Type	Method and Description
static RaesOutputStream	create(RaesParameters param, net.java.truecommons.io.Sink sink) Creates a new RAES output stream.
abstract net.java.truecommons.key.spec.KeyStrength	getKeyStrength() Returns the key strength which is actually used to encrypt the data of the RAES file.

Methods inherited from class net.java.truecommons.io.DecoratingOutputStream

close, flush, toString, write, write, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

RaesOutputStream

public RaesOutputStream()

Method Detail

create

@CreatesObligation
public static RaesOutputStream create(RaesParameters param,
                                                         net.java.truecommons.io.Sink sink)
                                                  throws RaesParametersException,
                                                         IOException

Creates a new RAES output stream.

Parameters:

param - The RaesParameters used to determine and configure the type of RAES file created. If the class of this parameter matches multiple parameter interfaces, it is at the discretion of this implementation which one is picked and hence which type of RAES file gets created. Provide an implementation of the RaesParametersProvider interface for more control. Instances of this interface are queried to find RAES parameters which match a known RAES type. This algorithm gets recursively applied.

sink - the sink for writing the RAES file to.

Returns:

A new RAES output stream.

Throws:

RaesParametersException - if the RAES parameters type is unknown.

IOException - on any I/O error.

getKeyStrength

public abstract net.java.truecommons.key.spec.KeyStrength getKeyStrength()

Returns the key strength which is actually used to encrypt the data of the RAES file.

Returns:

The key strength which is actually used to encrypt the data of the RAES file.